Sheet-metal nut



Aug 28, 1923. 1,466,176

- H. P. KRAFT SHEET METAL NUT Original Filed March 21, 1919 INVENTOR WITNESS: V

Patented Aug. 28, 3923. v

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' SHEET-METAL NUT.

Original application filed March and aims to provide certain improvements than the exterior diameter of the valve casfing. This permits the use of a valve cap on therein.

The invention is particularly directed to a sheet metal nut which is especially adapted to be used as a, rim nut for tire valves and which has an inner screwthread to engage the tire valve casing and an outer screw thread of larger diameter adapted to engage a dustcap or the like. V

The invention comprises generally two sheet metal structures, one of which has an extension within which such inner screwthread is formed, and the other of which has a similar extension upon which. said outer screw-thread is formed. The struc tures are best made hexagonal in form and one is adapted to fit within the other so that a non-rotative connection is secured. The invention includes other features of construction which will be hereinafter more fully described. v

Referring to 'the drawings which illustrate one form of the invention,

atire valve casing which is provided with the usual screw-threaded exterior. E indicates the nut as a whole, which is shown as screwing on the tire valve casing and bear ing against the usual felloe or rim Bj In the preferred construction of nut, two

sheet metal blanks are used, one being formed with the exterior fiat faces Yand the cylindrical extension Y. The other is formed to fit within the first and has flat faces Z and a screw-threaded extension Z. The two blanks are placed one within the 21, 19.19, Seria1 No. 284,011. Divided "and this May-2, 1819. Serial No. 294,266.-

- app11'cation filed other, face to face, and securedtogether by upsetting the edge of the outer one slightly Over the inner one, as shownat D, or in any other suitable way. The cylindrical extension Y is preferably utilized for the inner thread which engages with the'valve casing and also serves as a washer seat for the washer Y The screw-threaded extension Z serves as a means of attachment for the usual dust cap (not shown). This gives a point of connection forthe dust cap, which latter may be of greater internal diameter the valve casing whichis of greater external. diameter than the diameter ofthe casing itself. Thisconstruction facilitates the use of a valve. having no reduced nipple at its end; insuch constructions, the valve cap, if it fits exteriorly of the valve, must of necessity be of larger diameter than the valve casing and hence prevents the use of a dust cap which screws directly upon the casing.

The construction also provides a very strong and durable nut adapted to amply .withstand service strains on valves of larger diameters, such as are adapted for heavy truck tires.

WVhile I have shown and-described one form of the invention it will be understood that I do not wish to be limitedthereto, since various changes may be made therein without departing from the spirit of the invention.

What I claim is r 1. A sheet metal nut comprising two parts, eachhaving a body portion with an exterior flange and a tubular extension, the

two body portions fitting the one within the other in non-rotative. engagement, and the tubularextensions projecting in opposite directionsa 7 2. A sheet metal nut comprising two parts, each having a bodyportion'with an exterior flange and atubular extension, the two body portions fitting the one within the otherin non-rotative engagement, and the tubular extensions projecting in opposite di rections, and one of them screw-threaded.

3. A sheet metal nut comprising two parts, each having a body portion with an the other in non-rotative engagement, and. the tubular extensions projecting in opposite exterior flange and a tubular extension, the two body portions fitting the one within 10 sions screw-threaded.

directions, said extensions screw-threaded, v the one interiorly and the other exteriorly.

4. A sheet metal nut comprising two parts, each having a body portion with an exterior flange and a tubular extension, the flange and extension projecting inopposite directions, the two body portions fitting the one Within'the other in non-rotati e-eng-agement, and at least one of the tubularxexten- 5. A" sheet metal nut, comprising 'tWo portions of the two polygonally interfitting: parts, each having a 7 body portion With an exterior flange and a r tubular extension the two body portions fit ing the one Within the other, and the tubular extensions projecting in opposite directions.

6.- A nut according to claim 5, the body parts permanently united.

In witness whereof, I have hereunto Z HENRY P. KRAFT. V

signed my name. 

